So there is this question on the homework that I don't quite get, could you please help me out?

Beibou is designing a parking lot. A tall mast light will illuminate the three entrances, which will be located at points A(-8,13), B(-4,8) and C(18,10). Beibou needs to position the lamp so that it illuminates each entrance equally.

October 19th 2010, 05:59 PM

skeeter

Quote:

Originally Posted by buck

So there is this question on the homework that I don't quite get, could you please help me out?

Beibou is designing a parking lot. A tall mast light will illuminate the three entrances, which will be located at points A(-8,13), B(-4,8) and C(18,10). Beibou needs to position the lamp so that it illuminates each entrance equally.

let A, B, and C be three points on a circle whose center will be located where the perpendicular bisectors of AB and BC intersect.

October 19th 2010, 06:03 PM

buck

:S I graphed it out A, B, and C and it is a triangle, AB and BC intersect perpendicular?

October 19th 2010, 09:42 PM

bigwave

3 simultaneous circle equations

I did probably did it the hardest way

3 simultaneous circle equations set them to each other since the radius is the same

not nice even answers but they seem to be where the center is.(Cool)

October 20th 2010, 11:21 AM

skeeter

Quote:

Originally Posted by buck

:S I graphed it out A, B, and C and it is a triangle, AB and BC intersect perpendicular?